Summary for Ozyptila nigrita (Araneae)

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National Distribution

 
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Ozyptila nigrita Copyright: Lars Bruun
Identification difficulty rating: 4
Name: Ozyptila nigrita
Authority: (Thorell, 1875)
Order: Arachnida: Araneae
Family: Thomisidae
BAP status: UKBAP
National Rarity status: NS
IUCN status: LC

Records: 137
First Record: 1900
Latest Record: 2016

1992-on hectads: 19
Pre-1992 hectads: 24
Total hectads: 39

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About this species

Recorded altitude range
90m to 700m

Species text

Distribution
The species is confined to southern England. It is widespread in north-western and central Europe as far north as Sweden, but has not been recorded from Ireland.

Habitat and ecology
The spider occurs mainly on short calcareous chalk and limestone grassland, often in stony areas, and especially near the coast. It is also occasionally found on sand dunes. Males are adult from March to July, with a peak of activity in May and June, and again from August to October, females from March to September.

Status
UK Biodiversity Action Plan priority species. The species is abundant on some calcareous grassland sites, but rather local. It appears to have declined sharply over the past 20 years.

Threats
The loss of calcareous grassland to agricultural improvement, and possibly public pressure at some coastal sites.

Management and conservation
Maintain short calcareous grassland by grazing and possibly rotational disturbance.

Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.).  References

Adult Season

Adult Season Data (based on 36 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 29 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 19 records with structural habitat information)

Habitat Detail and Method (based on 21 records with habitat detail and method information)

Recorded management for locations with Ozyptila nigrita

Recorded substrate and hydrology for locations with Ozyptila nigrita

Images

Ozyptila nigrita
Ozyptila nigrita
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